Why is a meniscus root tear especially important?

A meniscus root tear can greatly reduce the meniscus’s ability to share load and absorb shock, making joint loading resemble a knee with little meniscal function. Medial knee pain, squatting pain, effusion, or sudden pain should prompt assessment. Some patients need root repair to protect the joint.

What can cause a knee to suddenly lock and not fully straighten?

A displaced fragment from a meniscus tear can block joint movement, although other injuries inside the knee may also cause this problem. A truly locked knee should be assessed promptly.

Does a meniscus tear always require surgery?

Not always. Treatment depends on the tear pattern and location, symptoms, age, and activity goals. Activity modification and structured rehabilitation may be tried first when there is no significant locking or persistent pain.